January 1, 2014
This is when the new health exchange plans can go into effect.
January 10, 2014
This is the last day most insurers will allow a payment for plans starting on January 1st.
March 31, 2014
This is the end of open-enrollment.
November 15, 2014-January 15, 2015
This is the start of open enrollment. If you bought a plan in 2014, this is the window of opportunity to change plans unless you have a life changing event such as a birth of a child, a change of employment status, an adoption, a divorce or other qualifying events.
April 15, 2015
This is the date when income-tax filings are typically due. For those receiving subsidies, this is the time for correcting over or under payments of health-care subsidies.